/* Acrux macro 웹페이지 — PC 앱과 같은 색 · 각진 버튼 · 네 모서리 ㄱ 장식 */
:root {
  --bg: #1e1f22;
  --panel: #2b2d31;
  --panel-grad: linear-gradient(160deg, #2e3035, #26282c);
  --hover: #35373c;
  --line: #3f4147;
  --fg: #dbdee1;
  --muted: #949ba4;
  --accent: #5865f2;
  --accent-h: #4752c4;
  --green: #23a55a;
  --deco: #ffffff;
  --deco-size: 12px;
  --deco-w: 2px;
  --ease-out: cubic-bezier(.22, 1, .36, 1);
  font-family: "Pretendard", "Malgun Gothic", "Segoe UI", sans-serif;
  color: var(--fg);
  background: var(--bg);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); -webkit-font-smoothing: antialiased; line-height: 1.6; }
a { color: inherit; text-decoration: none; }

/* ㄱ 모서리 (┌ ┐ └ ┘) — i18n.js 가 .deco 마다 네 개를 붙임 */
.deco { position: relative; }
.deco > .c { position: absolute; width: var(--deco-size); height: var(--deco-size); pointer-events: none;
  border: 0 solid var(--deco); transition: width .25s var(--ease-out), height .25s var(--ease-out); }
.deco > .c.tl { top: 0; left: 0; border-top-width: var(--deco-w); border-left-width: var(--deco-w); }
.deco > .c.tr { top: 0; right: 0; border-top-width: var(--deco-w); border-right-width: var(--deco-w); }
.deco > .c.bl { bottom: 0; left: 0; border-bottom-width: var(--deco-w); border-left-width: var(--deco-w); }
.deco > .c.br { bottom: 0; right: 0; border-bottom-width: var(--deco-w); border-right-width: var(--deco-w); }
.deco:hover > .c { width: calc(var(--deco-size) + 6px); height: calc(var(--deco-size) + 6px); }

/* 위쪽 줄 */
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 20px; padding: 12px 24px;
  background: rgba(30, 31, 34, .88); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; }
.logo img { width: 32px; height: 32px; filter: drop-shadow(0 0 6px rgba(140, 110, 255, .55)); }   /* 로고 아래쪽이 어두워서 배경에 묻히지 않게 살짝 빛 */
.top nav { display: flex; gap: 18px; margin-left: auto; }
.top nav a { color: var(--muted); font-weight: 600; font-size: 14px; }
.top nav a:hover { color: var(--fg); }
.lang { display: flex; border: 1px solid var(--line); }
.lang button { background: none; border: 0; color: var(--muted); font: inherit; font-size: 12px; font-weight: 700; padding: 5px 10px; cursor: pointer; }
.lang button.on { background: var(--accent); color: #fff; }

/* 첫 화면 */
.hero { position: relative; min-height: 78vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 64px 20px; overflow: hidden; }
.hero::before { content: ""; position: absolute; left: 50%; top: 50%; width: min(90vh, 90vw); aspect-ratio: 1; transform: translate(-50%, -50%);
  background: url("bg.png") center / contain no-repeat; opacity: .07; pointer-events: none; }
.hero-in { position: relative; max-width: 720px; }
.tag { display: inline-block; background: var(--accent); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 10px; }
.hero h1 { margin: 14px 0 6px; font-size: clamp(42px, 8vw, 72px); letter-spacing: -2px; line-height: 1.05; }
.sub { margin: 0 0 32px; color: var(--muted); font-size: 18px; }
.btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-flex; flex-direction: column; align-items: center; justify-content: center; min-width: 210px; padding: 14px 26px;
  background: var(--accent); color: #fff; transition: background .15s, transform .15s; }
.btn:hover { background: var(--accent-h); transform: translateY(-1px); }
.btn b { font-size: 16px; }
.btn small { font-size: 12px; opacity: .8; font-weight: 500; }
.btn.ghost { background: var(--panel); border: 1px solid var(--line); }
.btn.ghost:hover { background: var(--hover); }
.discord { display: inline-block; margin-top: 22px; color: var(--muted); font-weight: 600; }
.discord:hover { color: var(--fg); }

/* 묶음 */
.sec { max-width: 1080px; margin: 0 auto; padding: 72px 24px; }
.sec h2 { margin: 0 0 6px; font-size: 30px; letter-spacing: -.5px; }
.lead { margin: 0 0 28px; color: var(--muted); font-size: 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 14px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); margin-top: 20px; }
.card { background: var(--panel-grad); border: 1px solid var(--line); padding: 22px 22px 20px; --deco: #5c5f66; transition: border-color .2s; }
.card:hover { border-color: #4e5058; --deco: var(--accent); }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card h3 small { color: var(--muted); font-weight: 500; font-size: 13px; margin-left: 6px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card.dl p { margin-bottom: 18px; }
.card.dl .btn { min-width: 0; width: 100%; }
.small-link { display: inline-block; margin-top: 10px; font-size: 13px; color: var(--muted); }
.small-link:hover { color: var(--fg); }
.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 28px; align-items: start; }
.list { margin: 0; padding: 0; list-style: none; }
.list li { position: relative; padding: 8px 0 8px 24px; border-bottom: 1px solid var(--line); }
.list li::before { content: ""; position: absolute; left: 4px; top: 17px; width: 8px; height: 8px; background: var(--accent); }
.steps ol { margin: 8px 0 0; padding-left: 20px; color: var(--muted); }
.steps li { padding: 4px 0; }
.note { margin: 18px 0 0; color: var(--muted); font-size: 13px; }

footer { border-top: 1px solid var(--line); padding: 26px 24px 34px; }
.foot-in { max-width: 1080px; margin: 0 auto; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: var(--muted); font-size: 14px; }
.foot-in .links { display: flex; gap: 18px; }
.foot-in a:hover { color: var(--fg); }
.disc { max-width: 1080px; margin: 10px auto 0; color: #5c5f66; font-size: 12px; }

/* 나타나기 */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s var(--ease-out), transform .5s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 720px) {
  .top { padding: 10px 16px; gap: 12px; }
  .top nav { display: none; }
  .lang { margin-left: auto; }
  .split { grid-template-columns: 1fr; }
  .sec { padding: 52px 16px; }
  .btn { min-width: 0; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}